LXR linux/include/linux/mISDNhw.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 *
   4 * Author       Karsten Keil <kkeil@novell.com>
   5 *
   6 *   Basic declarations for the mISDN HW channels
   7 *
   8 * Copyright 2008  by Karsten Keil <kkeil@novell.com>
   9 */
  10
  11#ifndef MISDNHW_H
  12#define MISDNHW_H
  13#include <linux/mISDNif.h>
  14#include <linux/timer.h>
  15
  16/*
  17 * HW DEBUG 0xHHHHGGGG
  18 * H - hardware driver specific bits
  19 * G - for all drivers
  20 */
  21
  22#define DEBUG_HW                0x00000001
  23#define DEBUG_HW_OPEN           0x00000002
  24#define DEBUG_HW_DCHANNEL       0x00000100
  25#define DEBUG_HW_DFIFO          0x00000200
  26#define DEBUG_HW_BCHANNEL       0x00001000
  27#define DEBUG_HW_BFIFO          0x00002000
  28
  29#define MAX_DFRAME_LEN_L1       300
  30#define MAX_MON_FRAME           32
  31#define MAX_LOG_SPACE           2048
  32#define MISDN_COPY_SIZE         32
  33
  34/* channel->Flags bit field */
  35#define FLG_TX_BUSY             0       /* tx_buf in use */
  36#define FLG_TX_NEXT             1       /* next_skb in use */
  37#define FLG_L1_BUSY             2       /* L1 is permanent busy */
  38#define FLG_L2_ACTIVATED        3       /* activated from L2 */
  39#define FLG_OPEN                5       /* channel is in use */
  40#define FLG_ACTIVE              6       /* channel is activated */
  41#define FLG_BUSY_TIMER          7
  42/* channel type */
  43#define FLG_DCHANNEL            8       /* channel is D-channel */
  44#define FLG_BCHANNEL            9       /* channel is B-channel */
  45#define FLG_ECHANNEL            10      /* channel is E-channel */
  46#define FLG_TRANSPARENT         12      /* channel use transparent data */
  47#define FLG_HDLC                13      /* channel use hdlc data */
  48#define FLG_L2DATA              14      /* channel use L2 DATA primitivs */
  49#define FLG_ORIGIN              15      /* channel is on origin site */
  50/* channel specific stuff */
  51#define FLG_FILLEMPTY           16      /* fill fifo on first frame (empty) */
  52/* arcofi specific */
  53#define FLG_ARCOFI_TIMER        17
  54#define FLG_ARCOFI_ERROR        18
  55/* isar specific */
  56#define FLG_INITIALIZED         17
  57#define FLG_DLEETX              18
  58#define FLG_LASTDLE             19
  59#define FLG_FIRST               20
  60#define FLG_LASTDATA            21
  61#define FLG_NMD_DATA            22
  62#define FLG_FTI_RUN             23
  63#define FLG_LL_OK               24
  64#define FLG_LL_CONN             25
  65#define FLG_DTMFSEND            26
  66#define FLG_TX_EMPTY            27
  67/* stop sending received data upstream */
  68#define FLG_RX_OFF              28
  69/* workq events */
  70#define FLG_RECVQUEUE           30
  71#define FLG_PHCHANGE            31
  72
  73#define schedule_event(s, ev)   do { \
  74                                        test_and_set_bit(ev, &((s)->Flags)); \
  75                                        schedule_work(&((s)->workq)); \
  76                                } while (0)
  77
  78struct dchannel {
  79        struct mISDNdevice      dev;
  80        u_long                  Flags;
  81        struct work_struct      workq;
  82        void                    (*phfunc) (struct dchannel *);
  83        u_int                   state;
  84        void                    *l1;
  85        void                    *hw;
  86        int                     slot;   /* multiport card channel slot */
  87        struct timer_list       timer;
  88        /* receive data */
  89        struct sk_buff          *rx_skb;
  90        int                     maxlen;
  91        /* send data */
  92        struct sk_buff_head     squeue;
  93        struct sk_buff_head     rqueue;
  94        struct sk_buff          *tx_skb;
  95        int                     tx_idx;
  96        int                     debug;
  97        /* statistics */
  98        int                     err_crc;
  99        int                     err_tx;
 100        int                     err_rx;
 101};
 102
 103typedef int     (dchannel_l1callback)(struct dchannel *, u_int);
 104extern int      create_l1(struct dchannel *, dchannel_l1callback *);
 105
 106/* private L1 commands */
 107#define INFO0           0x8002
 108#define INFO1           0x8102
 109#define INFO2           0x8202
 110#define INFO3_P8        0x8302
 111#define INFO3_P10       0x8402
 112#define INFO4_P8        0x8502
 113#define INFO4_P10       0x8602
 114#define LOSTFRAMING     0x8702
 115#define ANYSIGNAL       0x8802
 116#define HW_POWERDOWN    0x8902
 117#define HW_RESET_REQ    0x8a02
 118#define HW_POWERUP_REQ  0x8b02
 119#define HW_DEACT_REQ    0x8c02
 120#define HW_ACTIVATE_REQ 0x8e02
 121#define HW_D_NOBLOCKED  0x8f02
 122#define HW_RESET_IND    0x9002
 123#define HW_POWERUP_IND  0x9102
 124#define HW_DEACT_IND    0x9202
 125#define HW_ACTIVATE_IND 0x9302
 126#define HW_DEACT_CNF    0x9402
 127#define HW_TESTLOOP     0x9502
 128#define HW_TESTRX_RAW   0x9602
 129#define HW_TESTRX_HDLC  0x9702
 130#define HW_TESTRX_OFF   0x9802
 131#define HW_TIMER3_IND   0x9902
 132#define HW_TIMER3_VALUE 0x9a00
 133#define HW_TIMER3_VMASK 0x00FF
 134
 135struct layer1;
 136extern int      l1_event(struct layer1 *, u_int);
 137
 138#define MISDN_BCH_FILL_SIZE     4
 139
 140struct bchannel {
 141        struct mISDNchannel     ch;
 142        int                     nr;
 143        u_long                  Flags;
 144        struct work_struct      workq;
 145        u_int                   state;
 146        void                    *hw;
 147        int                     slot;   /* multiport card channel slot */
 148        struct timer_list       timer;
 149        /* receive data */
 150        u8                      fill[MISDN_BCH_FILL_SIZE];
 151        struct sk_buff          *rx_skb;
 152        unsigned short          maxlen;
 153        unsigned short          init_maxlen; /* initial value */
 154        unsigned short          next_maxlen; /* pending value */
 155        unsigned short          minlen; /* for transparent data */
 156        unsigned short          init_minlen; /* initial value */
 157        unsigned short          next_minlen; /* pending value */
 158        /* send data */
 159        struct sk_buff          *next_skb;
 160        struct sk_buff          *tx_skb;
 161        struct sk_buff_head     rqueue;
 162        int                     rcount;
 163        int                     tx_idx;
 164        int                     debug;
 165        /* statistics */
 166        int                     err_crc;
 167        int                     err_tx;
 168        int                     err_rx;
 169        int                     dropcnt;
 170};
 171
 172extern int      mISDN_initdchannel(struct dchannel *, int, void *);
 173extern int      mISDN_initbchannel(struct bchannel *, unsigned short,
 174                                   unsigned short);
 175extern int      mISDN_freedchannel(struct dchannel *);
 176extern void     mISDN_clear_bchannel(struct bchannel *);
 177extern void     mISDN_freebchannel(struct bchannel *);
 178extern int      mISDN_ctrl_bchannel(struct bchannel *, struct mISDN_ctrl_req *);
 179extern void     queue_ch_frame(struct mISDNchannel *, u_int,
 180                        int, struct sk_buff *);
 181extern int      dchannel_senddata(struct dchannel *, struct sk_buff *);
 182extern int      bchannel_senddata(struct bchannel *, struct sk_buff *);
 183extern int      bchannel_get_rxbuf(struct bchannel *, int);
 184extern void     recv_Dchannel(struct dchannel *);
 185extern void     recv_Echannel(struct dchannel *, struct dchannel *);
 186extern void     recv_Bchannel(struct bchannel *, unsigned int, bool);
 187extern void     recv_Dchannel_skb(struct dchannel *, struct sk_buff *);
 188extern void     recv_Bchannel_skb(struct bchannel *, struct sk_buff *);
 189extern int      get_next_bframe(struct bchannel *);
 190extern int      get_next_dframe(struct dchannel *);
 191
 192#endif
 193